Left Ventricular Systolic Dysfunction in Patients with
... factors including anemia, activation of reninangiotensin aldosterone axis (13) and sympathetic nervous system (14), inflammation, abnormalities of bone and mineral metabolism (15) and proteinuria (16) also contribute to pathogenesis of reduced left ventricular systolic dysfunction. In our study, we ...
... factors including anemia, activation of reninangiotensin aldosterone axis (13) and sympathetic nervous system (14), inflammation, abnormalities of bone and mineral metabolism (15) and proteinuria (16) also contribute to pathogenesis of reduced left ventricular systolic dysfunction. In our study, we ...
TRANSCATHETER REPAIR OF CONGENITAL HEART DEFECTS
... in association with various CHD, especially complex cyanotic heart defects. In those patients, aortopulmonary collateral arteries can relieve systemic hypoxaemia prior to surgical correction. Surgical ligation is technically challenging. Indications of transcatheter embolisation are large left-right ...
... in association with various CHD, especially complex cyanotic heart defects. In those patients, aortopulmonary collateral arteries can relieve systemic hypoxaemia prior to surgical correction. Surgical ligation is technically challenging. Indications of transcatheter embolisation are large left-right ...
Ventricular Assist Devices and Total Artificial Heart
... Newer generation implantable VADs are smaller and more durable allowing for their use in myocardial recovery, possibly obviating the need for DT. However, the distinction between the use of LVADs as bridge to candidacy (BTC), when the therapeutic goal is to improve end-organ function in order to mak ...
... Newer generation implantable VADs are smaller and more durable allowing for their use in myocardial recovery, possibly obviating the need for DT. However, the distinction between the use of LVADs as bridge to candidacy (BTC), when the therapeutic goal is to improve end-organ function in order to mak ...
Cardiac, STEMI, and 12-Lead Review
... Making the accurate Field Diagnosis: •There are elevations (1 mm) in two contiguous or connecting leads: (Leads adjacent to each other) •There is at least one lead with reciprocal changes.. Reminder: •ECG would have changes in the area where the heart is being affected. • All other areas would look ...
... Making the accurate Field Diagnosis: •There are elevations (1 mm) in two contiguous or connecting leads: (Leads adjacent to each other) •There is at least one lead with reciprocal changes.. Reminder: •ECG would have changes in the area where the heart is being affected. • All other areas would look ...
Calculation Of Stenotic Valve Orifice Area
... Cardiac output must be determined accurately using the techniques described in Chapter 8. The cardiac output used in valve area calculation should be the value measured simultaneously with the gradient determination. The measurement used in the valve area formula is usually the forward cardiac outpu ...
... Cardiac output must be determined accurately using the techniques described in Chapter 8. The cardiac output used in valve area calculation should be the value measured simultaneously with the gradient determination. The measurement used in the valve area formula is usually the forward cardiac outpu ...
Quantification of the Contribution of Cardiac and Arterial - VU-dare
... ratio of SV to PP is a measure of compliance but tends to overestimate windkessel compliance by a factor of ⬇1.6 in dogs7; we therefore estimate C as 0.64 times SV/PP. In control subjects, Z0 is taken 33 mm Hg 䡠 L⫺1 䡠 s2; to calculate values for Z0 in patients, we make use of the fact that Z0 varies ...
... ratio of SV to PP is a measure of compliance but tends to overestimate windkessel compliance by a factor of ⬇1.6 in dogs7; we therefore estimate C as 0.64 times SV/PP. In control subjects, Z0 is taken 33 mm Hg 䡠 L⫺1 䡠 s2; to calculate values for Z0 in patients, we make use of the fact that Z0 varies ...
... during obstructive apnoeas may also be a cause of ventricular arrhythmias [26]. Myocardial ischaemia causes arrhythmias, but was demonstrated only in OSA patients with coronary heart disease [4]. Our patients showed concentric left ventricular hypertrophy and increased left atrial diameter (table 3) ...
Stress (Takotsubo) cardiomyopathy—a novel
... and 2 online). The shape of the ventricle at end systole resembles the Japanese fisherman’s octopus pot—the tako-tsubo—from which the syndrome derives its original name. The hypercontractile basal myocardium can generate left ventricular outflow tract obstruction in the presence of apical and midwa ...
... and 2 online). The shape of the ventricle at end systole resembles the Japanese fisherman’s octopus pot—the tako-tsubo—from which the syndrome derives its original name. The hypercontractile basal myocardium can generate left ventricular outflow tract obstruction in the presence of apical and midwa ...
Perioperative assessment of left ventricular function in patients with
... results suggest that the abnormalities in contractility of left ventricular myocardium are responsible for the impaired myocardial function in patients with mitral stenosis and that such impairment is clinically significant. Gash et al 10 in 1983 reported that the patients with MS usually exhibit re ...
... results suggest that the abnormalities in contractility of left ventricular myocardium are responsible for the impaired myocardial function in patients with mitral stenosis and that such impairment is clinically significant. Gash et al 10 in 1983 reported that the patients with MS usually exhibit re ...
Determination of pressure data from velocity data with a view
... equation using additional energy dissipation factors such as those in the Gorlin equation are totally empirical and in fact variable from condition to condition – without a basis in mechanics or mathematics that is reproducible across experimental conditions. Consequently, such approaches lack accur ...
... equation using additional energy dissipation factors such as those in the Gorlin equation are totally empirical and in fact variable from condition to condition – without a basis in mechanics or mathematics that is reproducible across experimental conditions. Consequently, such approaches lack accur ...
Cardiovascular system File
... The two atria holds the blood returning from the veins and empty it only in a given right moment into the ventricles. Ventricles pump the blood into the arteries . Heart valves : There are four valves in the heart : Two atrioventricular valves and two semi-lunar valves: 1. Atrioventricular ( AV ) va ...
... The two atria holds the blood returning from the veins and empty it only in a given right moment into the ventricles. Ventricles pump the blood into the arteries . Heart valves : There are four valves in the heart : Two atrioventricular valves and two semi-lunar valves: 1. Atrioventricular ( AV ) va ...
Left Bundle Branch Block and Left Ventricular
... 6les with a diagnosis of LBBB were reviewed to determine whether criteria for this diagnosis as defined by the New York Heart Association7 were present and if an adequate necropsy had been performed. Pathologic data included recorded heart weight, left and right ventricular wall thickness and adequa ...
... 6les with a diagnosis of LBBB were reviewed to determine whether criteria for this diagnosis as defined by the New York Heart Association7 were present and if an adequate necropsy had been performed. Pathologic data included recorded heart weight, left and right ventricular wall thickness and adequa ...
diastolic dysfunction and heart failure physiology, historical features
... – Signs/symptoms of heart failure w normal ventricular function/size and findings of abnormal diastolic function ...
... – Signs/symptoms of heart failure w normal ventricular function/size and findings of abnormal diastolic function ...
Colour M-mode velocity propagation
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
Left Bundle Branch Block and Left Ventricular Hypertrophy
... 6les with a diagnosis of LBBB were reviewed to determine whether criteria for this diagnosis as defined by the New York Heart Association7 were present and if an adequate necropsy had been performed. Pathologic data included recorded heart weight, left and right ventricular wall thickness and adequa ...
... 6les with a diagnosis of LBBB were reviewed to determine whether criteria for this diagnosis as defined by the New York Heart Association7 were present and if an adequate necropsy had been performed. Pathologic data included recorded heart weight, left and right ventricular wall thickness and adequa ...
Surgical treatment of cor triatriatum in a geriatric patient: A rare
... pressure 4 mmHg. Late pulmonary angiography showed membrane in the left atrium, with typical presentation of cor triatriatum (figure 3). The membrane had one fenestration. A pressure gradient of 9-10 mm Hg was measured, which was caused by the membrane between the left atrium and the left ventricle. ...
... pressure 4 mmHg. Late pulmonary angiography showed membrane in the left atrium, with typical presentation of cor triatriatum (figure 3). The membrane had one fenestration. A pressure gradient of 9-10 mm Hg was measured, which was caused by the membrane between the left atrium and the left ventricle. ...
BME lecture 9 - cardiovascular modeling (Sept 23, 2004)
... during ejection is due to the internal frictional losses (RS). Overall, RS is roughly proportional to PELAST, as one expects from experimental observations (Hunter et al) and is not appreciably different at the higher heart rate. However, it does exhibit different behavior for increasing PELAST than ...
... during ejection is due to the internal frictional losses (RS). Overall, RS is roughly proportional to PELAST, as one expects from experimental observations (Hunter et al) and is not appreciably different at the higher heart rate. However, it does exhibit different behavior for increasing PELAST than ...
Untitled
... Several different parameters are used to reflect contractility. These include stroke volume (SV), stroke volume index (SVI), left ventricular stroke work index (LVSWI) and right ventricular stroke work index (RVSWI). The normal values and formulas for each of the measures is found on this slide. ...
... Several different parameters are used to reflect contractility. These include stroke volume (SV), stroke volume index (SVI), left ventricular stroke work index (LVSWI) and right ventricular stroke work index (RVSWI). The normal values and formulas for each of the measures is found on this slide. ...
上海第二医科大学仁济临床医学院
... The terms “ectopy,””ectopic pacemaker,” and “ectopic contraction or beat” are used to describe these stimuli that arise in areas of the heart outside the sinus node. There are two major categories of ectopic beats: 1. Premature ectopic beats are extra beats that come before the next normal beat ...
... The terms “ectopy,””ectopic pacemaker,” and “ectopic contraction or beat” are used to describe these stimuli that arise in areas of the heart outside the sinus node. There are two major categories of ectopic beats: 1. Premature ectopic beats are extra beats that come before the next normal beat ...
Idiopathic ventricular tachycardia in children
... Results. Six children with idiopathic ventricular tachycardia were free of symptoms. Palpitation was the only complain in four patients, and six patients presented with symptoms of circulatory disorder (the tendency of the higher rate of ventricular tachycardia and more premature contractions and ep ...
... Results. Six children with idiopathic ventricular tachycardia were free of symptoms. Palpitation was the only complain in four patients, and six patients presented with symptoms of circulatory disorder (the tendency of the higher rate of ventricular tachycardia and more premature contractions and ep ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... infection. Signs and symptoms of heart failure in these patients may be atypical or masked by concurrent illness and malnutrition. ECG may reveal non specific conduction defects or repolarisation changes. Upto 5% of asymptomatic HIV infected patients have baseline ECG abnormalities like supraventric ...
... infection. Signs and symptoms of heart failure in these patients may be atypical or masked by concurrent illness and malnutrition. ECG may reveal non specific conduction defects or repolarisation changes. Upto 5% of asymptomatic HIV infected patients have baseline ECG abnormalities like supraventric ...
Dual Chamber Pacemakers: Fact Sheet
... 4. Second-degree AV heart block of Type I (i.e., progressive prolongation of P-R interval prior to each blocked beat) with significant symptoms due to hemodynamic instability associated with the heart block; 5. Sinus bradycardia associated with major symptoms (e.g., syncope, seizures, congestive h ...
... 4. Second-degree AV heart block of Type I (i.e., progressive prolongation of P-R interval prior to each blocked beat) with significant symptoms due to hemodynamic instability associated with the heart block; 5. Sinus bradycardia associated with major symptoms (e.g., syncope, seizures, congestive h ...
Case Report Takotsubo Cardiomyopathy and Canalith
... Her only cardiac risk factor was hyperlipidemia, for which she had been taking 20 mg of simvastatin per day. Her family history was negative for cardiac diseases. With the elevated cardiac enzymes and electrocardiography implying acute myocardial infarction, the patient was immediately referred for ...
... Her only cardiac risk factor was hyperlipidemia, for which she had been taking 20 mg of simvastatin per day. Her family history was negative for cardiac diseases. With the elevated cardiac enzymes and electrocardiography implying acute myocardial infarction, the patient was immediately referred for ...
Transthoracic closure of atrial septal defect and ventricular septal
... Transthoracic small incision occlusion is one of the newest treatment methods for ASD and VSD. In 1998, Amin et al. first reported that it is feasible to successfully deploy an Amplatzer occluder for membranous and muscular VSDs in an animal model. In 2003, in a children’s hospital in Chicago, Bacha ...
... Transthoracic small incision occlusion is one of the newest treatment methods for ASD and VSD. In 1998, Amin et al. first reported that it is feasible to successfully deploy an Amplatzer occluder for membranous and muscular VSDs in an animal model. In 2003, in a children’s hospital in Chicago, Bacha ...
Haemodynamic Learning Package
... The right atrial or CVP waveform usually consists of 3 positive waves, the “a”, “c”, and “v” waves. The a wave is followed by the “x” descent whilst the c and v waves are followed by the “x” and “y” descents respectively. (see illustration). The positive deflections represent; A wave - represents at ...
... The right atrial or CVP waveform usually consists of 3 positive waves, the “a”, “c”, and “v” waves. The a wave is followed by the “x” descent whilst the c and v waves are followed by the “x” and “y” descents respectively. (see illustration). The positive deflections represent; A wave - represents at ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.